Problem with the STRS namelist group

[Pablo]

Hi, I am starting to use the FDS+EVAC tool in order to simulate evacuation in buildings with more than one floor. 

I am trying to use STRS to simulate the stairs, to do it properly I am doing it considerating the example on the web http://virtual.vtt.fi/virtual/proj6/fdsevac/examples_fds6.html.

Everything is ok if I just copy and paste from the example on the web. Problems start when I try to modify some things, like adjust the stairs to 3 floors instead of 2. The main problem I have not been able to solve is related with the doors I need to put at the boundaries of the stairs. I always receive the same error:

ERROR: DOOR line SalidaEsc is in the stairs Escalera, no node found.

I didn't manage to fix it even if I change the XB of the DOOR. I have the feeling that probably I am missing something important about the STRS namelist group. 

These are the lines involved:

&STRS ID='Escalera', COLOR='RED',

      XB=  32.0,38.0, 3.0,5.6, 0.0,12.0,

      IJK=62,24,1, EVAC_Z_OFFSET=1.6,

      XB_CORES(1,:)= 33.2,36.8, 4.2,4.4, 0.0,12.0,

      RIGHT_HANDED=.FALSE.,

      VERTICAL_LANDING_SEPARATION=1.4,  N_LANDINGS=5,

      XB_LANDINGS( 1,:)= 36.8,38.0, 3.0,5.6, 0.01, 0.03,

      XB_LANDINGS( 2,:)= 32.0,33.2, 3.0,5.6, 1.41, 1.43,

      FAC_V0_UP=0.4, FAC_V0_DOWN=0.75, FAC_V0_HORI=1.0, /

&HOLE XB= 31.99,32.25, 2.99,4.21, -0.1,1.4, EVACUATION=.TRUE./

&HOLE XB= 31.99,32.25, 4.39,5.61,  2.7,3.0, EVACUATION=.TRUE./  

 

&DOOR ID='SalidaEsc', IOR=-1,

      FYI= 'Comment line', MESH_ID='EV_MESH',

      COLOR='CYAN', EXIT_SIGN=.FALSE.,

      TO_NODE= 'Escalera', KEEP_XY=.TRUE.,

 XYZ= 31.7, 3.8, 0.02,

      XB=  32.0,32.0, 3.00,4.20, 0.01,0.03/

&DOOR ID='EntradaEsc1', IOR=-1,

      FYI= 'Comment line', MESH_ID='EV_MESH2', 

      COLOR='CYAN', EXIT_SIGN=.TRUE.,

      TO_NODE= 'Escalera', KEEP_XY=.TRUE.,

      XYZ= 31.7, 5.0, 2.82,

      XB=  32.0,32.0, 4.40,5.60, 2.81,2.83, /

&DOOR ID='EntradaEsc2', IOR=-1,

      FYI= 'Comment line', MESH_ID='EV_MESH3', 

      COLOR='CYAN', EXIT_SIGN=.TRUE.,

      TO_NODE= 'Escalera', KEEP_XY=.TRUE.,

 XYZ= 31.7, 3.8, 5.62,

      XB=  32.0,32.0, 3.00,4.20,5.61,5.63/

Thank you,

Pablo

 

[TimoK]

Well, you could see the STRS example:

http://virtual.vtt.fi/virtual/proj6/fdsevac/fds6/examples/OfficeStairsSTRS_0p75.fds

&STRS ID='Strs',
      XB= -0.25,3.50, -4.75,2.50, 0.00,21.50,
      IJK=15,29,1, EVAC_Z_OFFSET=1.6,
      XB_CORES(1,:)= 1.75,2.00, -3.0,0.0, 0.00, 3.75,
      XB_CORES(2,:)= 1.75,2.00, -3.0,0.0, 3.75,21.5,
      RIGHT_HANDED=.FALSE., 
      VERTICAL_LANDING_SEPARATION=1.75,  N_LANDINGS=11,
      XB_LANDINGS( 1,:) = -0.25, 3.50,   0.00, 2.5, 0.00, 0.25,
      XB_LANDINGS( 2,:) = -0.25, 3.50,  -4.75,-3.0, 2.25, 2.50,
      XB_LANDINGS( 3,:) = -0.25, 3.50,   0.00, 2.5, 4.00, 4.25,
      FAC_V0_UP=0.4, FAC_V0_DOWN=0.75, FAC_V0_HORI=1.0, /


So, it might be that you should add:
XB_LANDINGS( 3,:)= 36.8,38.0, 3.0,5.6, 2.81, 2.83,

Well, I do not know, if this helps or not. I try to find some time
to check that. Might be that you need to give the XBs for each landing.
Well, giving 1st, 2nd and 3rd seem to be working. I did not write the
STRS routine, so I'm not really sure, hove it does figure our the
landings and their XBs.

Wbr,
TimoK